Duplicate your Savage Roar weakaura. In the new aura (which i call SR Invert), you select the Invert option, so the icon will appear when the aura (Savage Roar) is not present. I usually Desaturate (Black/White) my "Inverted" auras.

You can do that for any auras that you want to show when active and inactive in a simple way to see.

I'm not at home to check, but I'm pretty sure you would need to make a different aura with the in combat condition as false (or negative/red). You could just copy the one you have working in combat and set the new one with the different condition.

All triggers have a section at the bottom labeled "Conditions". These are six conditions that are too long-lasting to be treated as triggers, but too temporary to be treated as load conditions. Each can be left un-enabled, enabled as "positive" (green), or enabled as "negative" (red). If a condition is enabled as "positive", the display will only be visible if the condition is met. If the condition is enabled as "negative", the display will only be visible if the condition is not met.

Condition Options: •Mounted: Checks whether the player is on a mount. •Resting: Checks whether the player is gaining rested experience (i.e., is in a city or inn) •In Combat: Checks whether the player is currently in combat. •In Vehicle: Checks whether the player is in a vehicle of any type. •Alive: Checks whether the player is alive. •PvP Flagged: Checks whether the player is PvP flagged.